38. Minnesota> Average temperature in the summer: 66.3° F> Hottest area in the summer: Minneapolis-St.Paul with avg. summer temp. of 71.3° F> Highest temperature recorded since 1980: 108.0° F in Rochester

Source: Thinkstock

39. New York> Average temperature in the summer: 65.9° F> Hottest area in the summer: New York (Laguardia Ap) with avg. summer temp. of 75.3° F> Highest temperature recorded since 1980: 102.0° F in Rochester

Source: Thinkstock

40. Michigan> Average temperature in the summer: 65.7° F> Hottest area in the summer: Detroit with avg. summer temp. of 71.8° F> Highest temperature recorded since 1980: 106.0° F in Alpena